Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 302
of any one phase at anyinstant is equal and opposite to the sum of the voltages in theother two phases, see page 233, so that if, in Fig. 323, one trans-former A of a bank of delta-connected transformers is discon-nected, the difference of potential between a and b is unchanged,being maintained by… … b h Secondary * Primary Delta connection. £L_a
Electrical engineering
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